Part 1. Definition
In this task, you're given a context passage, followed by a question that needs to be answered. Based on the paragraph, you must write unambiguous answers to the questions and your answer must refer to a specific phrase from the paragraph. If multiple answers seem to exist, write the answer that is the most plausible.
Part 2. Example
Tracy slept awkwardly on their new bed and was having some pain, so Tracy cracked her neck. 
Question: What did Tracy do with her neck?
Answer: crack her neck
Explanation: The output phrase perfectly answers the question and is explicitly mentioned in the passage as well.
Part 3. Exercise
It's Casino Night ! Get up to 6,000 FREE Tokens Now ! Play High Stakes Poker , Ride the Tide , and Vaults of Atlantis today and get 2,000 bonus tokens in each game . You can get a total of 6,000 Tokens for playing all three ! 
Question: Why are there 6,000 free tokens ?
Answer:
Because the casino wants to entice people to join .